A Multiple Regression Model Has the Form: = 3

question 84

Multiple Choice

A multiple regression model has the form: = 3.25 + 2.5x₁ + 1.5x₂.If x₂ increases by 1 unit,holding x₁ constant,the value of y will increase on average by:

• A)3.25 units.
• B)2.5 units.
• C)1.5 units.
• D)7.25 units.

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Definitions:

Osmoconformers

Organisms that maintain internal osmotic pressure that is in balance with that of their surrounding environment.

Sea Water

Water from the sea, characterized by its high salinity, containing dissolved salts, minerals, and organic materials.

Concentration

The measure of the amount of a given substance in a specific volume of a solution or mixture.

Osmoregulators

Organisms that regulate their internal osmotic pressure, maintaining fluid balance despite external environmental changes.